How can tartar and plaque be removed from teeth without grinding? is there any paste, etc. for it?
The girders of a suspension bridge form an arc. The definition of an arc is a curve or bowed shape, like a part of a circle. An example of an arc is a rainbow. To arc is defined as to make a curved shape or move in a curved path.
The arc can be any part of the circumference of a circle. It is a smooth line joining the points on the curve or on the circumference of a circle. The length of an arc is termed as arc length.